001///////////////////////////////////////////////////////////////////////////////////////////////
002// checkstyle: Checks Java source code and other text files for adherence to a set of rules.
003// Copyright (C) 2001-2025 the original author or authors.
004//
005// This library is free software; you can redistribute it and/or
006// modify it under the terms of the GNU Lesser General Public
007// License as published by the Free Software Foundation; either
008// version 2.1 of the License, or (at your option) any later version.
009//
010// This library is distributed in the hope that it will be useful,
011// but WITHOUT ANY WARRANTY; without even the implied warranty of
012// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
013// Lesser General Public License for more details.
014//
015// You should have received a copy of the GNU Lesser General Public
016// License along with this library; if not, write to the Free Software
017// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
018///////////////////////////////////////////////////////////////////////////////////////////////
019
020package com.puppycrawl.tools.checkstyle.api;
021
022import java.io.File;
023import java.util.List;
024
025/**
026 * The first module that is run as part of Checkstyle and controls its entire
027 * behavior and children.
028 */
029public interface RootModule extends Configurable {
030
031 /** Cleans up the object. **/
032 void destroy();
033
034 /**
035 * Processes a set of files.
036 * Once this is done, it is highly recommended to call for
037 * the destroy method to close and remove the listeners.
038 *
039 * @param files the list of files to be audited.
040 * @return the total number of audit events with error severity found
041 * @throws CheckstyleException if error condition within Checkstyle occurs
042 * @see #destroy()
043 */
044 int process(List<File> files) throws CheckstyleException;
045
046 /**
047 * Add the listener that will be used to receive events from the audit.
048 *
049 * @param listener the nosy thing
050 */
051 void addListener(AuditListener listener);
052
053 /**
054 * Sets the classloader used to load Checkstyle core and custom module
055 * classes when the module tree is being built up.
056 * If no custom ModuleFactory is being set for the root module then
057 * this module classloader must be specified.
058 *
059 * @param moduleClassLoader the classloader used to load module classes
060 */
061 void setModuleClassLoader(ClassLoader moduleClassLoader);
062
063}